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water mist 13

water resources 13

drinking water 11

sustainable development 11

water 11

water quality 10

water treatment 9

adsorption 7

water resource 7

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water environment 6

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Large-sized water injection units are key equipment in oilfields.To ensure the normal operation of units and save maintenance costs, trend prediction technology is studiedto achieve condition-based maintenance for water injection units.that the proposed trend prediction technology can reflect the operating condition trend change of the waterinjection units and provide technical means to achieve condition-based predictive maintenance.

Keywords： water injection units     condition-based maintenance     trend prediction    

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Economic Development Models of Gas Condensate Reservoir

Liu Tingyuan

Strategic Study of CAE 2001, Volume 3, Issue 3,   Pages 85-91

Abstract: condensate reservoirs, including reinjection with 75% dry gas recycling, dumpflooding of gas, nitrogen injection, water injection, water and gas alternating injection, C〇2 injection, etc.

Keywords： gas condensate reservoir     development model     gas injection     nitrogen injection     water injection     CO 2 injection     economic    

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Determination of selected semi-volatile organic compounds in water using automated online solid-phaseextraction with large-volume injection/gas chromatography/mass spectrometry

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 417-425 doi: 10.1007/s11783-011-0310-x

Abstract: online solid-phase extraction technique coupled with programmed-temperature vaporization large-volume injectionThe water samples were extracted by using a fully automated mobile rack system based on x-y-z robotic, and surface water.For the reagent water samples fortified at 1.0μg·L and 2.0?For the drinking water, groundwater, and surface water samples fortified at 1.0μg·L , the obtained mean

Keywords： automated solid-phase extraction     programmed-temperature vaporization     large-volume injection     gas chromatography/mass spectrometry     semi-volatile organic compounds     water analysis    

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Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 148-161 doi: 10.1007/s11708-015-0344-z

Abstract: Advanced real time monitoring is facilitated by incorporating synchrophasor measurement units such asphasor measurement units (PMUs) to the power grid monitoring system.locations in the smart power grid for installing PMUs in conjunction with existing conventional measurement units

Keywords： phasor measurement units (PMUs)     pragmatic PMU placement     simulated annealing (SA)     western region Indian    

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Discussions and practice of pressurized water injection for ultra low permeability oilfield

Zhang Hongliang

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 62-64

Abstract: to recovery oil efficiently, this paper describes pilot studies of pressurized water injection on singleAfter injection completion, effective waterflood drive and significant production improvement was achieved.UseWater injection front drive and spread area increases or decreases, following changes of pressure ofwater injection.Pressurized water injection can increase coefficient of water injection front drive and enhance oil recovery

Keywords： pressurized waterflood     passive microseismic     ultra low permeable oilfield     affected coefficient     effective injection    

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Distribution and potential ecological risk of heavy metals in the typical eco-units of Haihe River Basin

Jingling LIU,Tao YANG,Qiuying CHEN,Feng LIU,Binbin WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 103-113 doi: 10.1007/s11783-014-0686-5

Abstract: distribution and characteristics of seven heavy metals in sediments located in the typical ecological units(eco-units) (e.g., rivers, lakes, and estuaries) of Haihe River Basin were analyzed.The results indicated that the concentration scales of As, Hg, Cr, Cd, Pb, Cu, and Zn in the eco-unitsThe maximum concentrations of Hg, Cd, and Zn showed higher levels than other water bodies around theThese results provided a scientific basis for water environment improvement and risk management of the

Keywords： Haihe River Basin     ecological risk     eco-units     heavy metals    

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Reliability prediction and its validation for nuclear power units in service

Jinyuan SHI,Yong WANG

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 479-488 doi: 10.1007/s11708-016-0425-7

Abstract: In this paper a novel method for reliability prediction and validation of nuclear power units in serviceUsing these factors, the equivalent availability factor of nuclear power units in the following 3 yearsFurthermore, the reliability prediction method is validated using the nuclear power units in North Americanis found that the relative errors of the predicted equivalent availability factors for nuclear power unitsthus providing effective reliability management and maintenance optimization methods for nuclear power units

Keywords： nuclear power units in service     reliability     reliability prediction     equivalent availability factors    

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Research and practice of layered cross cyclic injectionproduction water flooding technology in ultrahigh water cut stage

Jiang Zhenhai

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 77-82

Abstract:

Aiming at the remaining oil distribution feature in ultrahigh waterOilfield, guided by the hydrodynamic principle, based on the practical experience and analysis of cyclic waterflooding in combination with numerical simulation, cyclic water flooding and various parameters areoptimized, and layered cross injection with changing fluid direction is adopted so as to improve the

Keywords： cyclic water flooding     cyclic production     method optimization     parameters optimization    

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Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 148-154 doi: 10.1007/s11708-012-0174-1

Abstract: The increasing capacity of nuclear units in power grid poses threat to system stability and security.Load disturbance may cause overspeed of the units and trigger the overspeed protection controller (OPCBased on the analysis of frequency regulation, mathematic models for nuclear units in the grid are establishedThe critical action of the OPC is proposed as the constraint of safe operation for the units.This research can help to estimate the capacity limitation of nuclear units in the grid.

Keywords： nuclear units capacity     overspeed     primary frequency control (PFC)     second frequency control (SFC)    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsIn this study, a 3D simulation method was developed for injection-compression molding.in the cavity were investigated by using the proposed simulation method and compared with those of injectionpressures at different points along the flow path is complicated rather than monotonically decreased in injection

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Density variation during the injection molding process directly reflects the state of plastic melt andExperiments with different process conditions are conducted, including different melt temperature, injectioni> measurement, non-destructive, high accuracy, low cost, and is of great application value for the injection

Keywords： ultrasonic measurement     melt density     in-situ measurement     injection molding    

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Feasibility study on hot dry rock assisted oil recovery technique

Wang Xuezhong

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 104-106

Abstract: rock assisted oil recovery technology had strong pertinence and effectively inherited cyclic steam injection

Keywords： hot fry rock assist oil recovery     damage by cold water     thermal heavy oil     hot water injection     aquathermolysis    

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Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 85-95 doi: 10.1007/s11465-018-0491-0

Abstract:

Injection molding is one of the most widely used material processing methods in producing plasticstudies and developments of the intelligent methods applied in the process parameter determination of injection

Keywords： injection molding     intelligent methods     process parameters     optimization    

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Using waterflood front monitoring to track the speed of water flow drive

Yang Zhidong,Zhou Jinyan,Chang Zhiyong,Zhang Jinrong,Han Mingyi

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 31-33

Abstract: It concludes that microseismic monitoring is capable of detecting locations of water flow drive, whichprovides evidence to optimize waterflood plan, improve injection/production methods, and increase waterflood

Keywords： water-flooding monitoring     main direction of flooding     injection control    

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Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and costs using improved ABC algorithm

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 426-432 doi: 10.1007/s11708-015-0376-4

Abstract: The aim of this paper is simultaneous minimization of hydrothermal units to reach the best solution by(ED) considering the valve-point effect and pollution function in power systems in view of the hot waterIn this type of optimization problem, all practical constraints of units were taken into account as muchThese constraints include the maximum and minimum output power of units, the constraints caused by thebalance between supply and demand, the impact of pollution, water balance, uneven production curve considering

Keywords： practical constraints of units     pollution function     inlet steam valve     up-ramp rate of units     improved ABC    

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Title Author Date Type Operation

Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Journal Article

Economic Development Models of Gas Condensate Reservoir

Liu Tingyuan

Journal Article

Determination of selected semi-volatile organic compounds in water using automated online solid-phaseextraction with large-volume injection/gas chromatography/mass spectrometry

Yongtao LI, Christina L. MCCARTY, Ed J. GEORGE

Journal Article

Pragmatic multi-stage simulated annealing for optimal placement of synchrophasor measurement units in

Pathirikkat GOPAKUMAR,M. JAYA BHARATA REDDY,Dusmata Kumar MOHANTA

Journal Article

Discussions and practice of pressurized water injection for ultra low permeability oilfield

Zhang Hongliang

Journal Article

Distribution and potential ecological risk of heavy metals in the typical eco-units of Haihe River Basin

Jingling LIU,Tao YANG,Qiuying CHEN,Feng LIU,Binbin WANG

Journal Article

Reliability prediction and its validation for nuclear power units in service

Jinyuan SHI,Yong WANG

Journal Article

Research and practice of layered cross cyclic injectionproduction water flooding technology in ultrahigh water cut stage

Jiang Zhenhai

Journal Article

Capacity limitation of nuclear units in grid based on analysis of frequency regulation

Yiping DAI, Pan JIANG, Lin GAO, Weimin KAN, Xiaoqing XIAO, Ge JIN

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Feasibility study on hot dry rock assisted oil recovery technique

Wang Xuezhong

Journal Article

Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Journal Article

Using waterflood front monitoring to track the speed of water flow drive

Yang Zhidong,Zhou Jinyan,Chang Zhiyong,Zhang Jinrong,Han Mingyi

Journal Article

Optimal operation of energy at hydrothermal power plants by simultaneous minimization of pollution and costs using improved ABC algorithm

Homayoun EBRAHIMIAN,Bahman TAHERI,Nasser YOUSEFI

Journal Article